phe·​no·​gram | \ ˈfēnəˌgram \

Definition of phenogram

: a branching diagrammatic tree used in phenetic classification to illustrate the degree of similarity among taxa — compare cladogram

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

First Known Use of phenogram

1965, in the meaning defined above

History and Etymology for phenogram

phen- + -gram

Keep scrolling for more

Learn More about phenogram

Time Traveler for phenogram

Time Traveler

The first known use of phenogram was in 1965

See more words from the same year

Statistics for phenogram

Cite this Entry

“Phenogram.” Dictionary, Merriam-Webster, Accessed 27 Nov. 2020.

Comments on phenogram

What made you want to look up phenogram? Please tell us where you read or heard it (including the quote, if possible).


Test Your Vocabulary

A Thanksgiving Word Quiz

  • a traditional thanksgiving dinner
  • November comes from a word for which of the following numbers?
Spell It

Can you spell these 10 commonly misspelled words?

Dictionary Devil

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!